9mm Active Buzzer 5V DC Mini Magnetic Buzzer with Built-in Oscillator

The 9mm Active Buzzer (5V DC) is a compact sound-generating component designed for easy integration into electronic circuits. With a built-in oscillator, it produces a continuous beep when powered—no need for PWM or external signal generation.

Its small 9mm diameter makes it ideal for space-constrained PCB designs, while maintaining a clear and audible sound output. This buzzer is widely used in alarms, notification systems, and microcontroller-based projects.

Perfect for beginners and professionals alike, it offers reliable performance with simple 2-pin connectivity.

Features of 9mm Active Buzzer 5V DC Mini Magnetic Buzzer

• Active buzzer with built-in oscillator (no external signal needed)
• Small 9mm diameter (compact design)
• Operates on 3V–5V DC (optimized for 5V)
• Continuous beep sound output
• Low current consumption (~20–30mA)
• Easy 2-pin through-hole mounting
• Lightweight and durable

Specifications of 9mm Active Buzzer 5V DC Mini Magnetic Buzzer

• • Type: Active Magnetic Buzzer
  • Diameter: 9mm
  • Height: ~5–7mm
  • Rated Voltage: 5V DC
  • Operating Voltage: 3V–7V DC
  • Current Consumption: <20–30mA
  • Sound Output: ~80dB at 10cm
  • Resonant Frequency: ~2.5kHz
  • Pin Type: Through-hole (2-pin)

  (Active buzzers produce sound automatically when powered due to an internal oscillator circuit)

Footprint Dimensions

• Pin Pitch (center-to-center): 5.0 mm (common)
• Hole Diameter (drill): 0.8 – 1.0 mm
• Pad Diameter: 1.8 – 2.2 mm
• Courtyard (keepout): ≥ 10 mm diameter
• Body Diameter: 9 mm

👉 Typical 9mm buzzers use a simple 2-pin through-hole footprint with ~5mm spacing

Applications –

• Arduino & microcontroller projects
• Alarm systems & alerts
• Timers & reminder circuits
• DIY electronics projects
• Industrial indicators

Package Contains –

1 x 9mm Active Buzzer 5V DC Mini Magnetic Buzzer with Built-in Oscillator